When people compare cryptocurrencies, one of the first numbers they usually check is market cap.
But market cap tells only part of the story.
Another number called Fully Diluted Valuation, or FDV, can reveal something market cap may hide: how much additional token supply could eventually enter circulation.
Understanding the difference can help you read crypto valuations more clearly, especially when looking at newer tokens with large amounts of locked supply.
What Is Market Cap?
Market capitalization represents the current value of all tokens considered to be circulating.
The basic formula is simple:
Market Cap = Token Price × Circulating Supply
For example, imagine a token trades at $2 and has 100 million tokens circulating.
Its market cap would be:
$2 × 100 million = $200 million
That $200 million figure tells you the token's current circulating valuation. Both CoinGecko and CoinMarketCap describe market capitalization using circulating supply multiplied by price.
Market Cap Doesn't Mean $200 Million Was Invested
This is an important misunderstanding.
A $200 million market cap does not mean investors deposited exactly $200 million into the token.
Market cap is a valuation calculated from the latest token price and circulating supply. Price changes can therefore move market capitalization significantly without an equal amount of new money entering or leaving the asset.
This is why market cap is more useful for comparing the relative size of crypto assets than measuring exactly how much money has entered them.
So, What Is FDV?
Fully Diluted Valuation tries to answer a different question.
Instead of looking only at tokens circulating today, FDV estimates the valuation if the project's full relevant supply were circulating at the current token price.
A commonly used formula is:
FDV = Token Price × Maximum Supply
Binance Academy defines FDV this way, while data providers can differ somewhat in whether they use maximum or total supply depending on the asset and methodology.
Let's return to our imaginary $2 token.
Suppose only 100 million tokens are circulating, but its maximum supply is 1 billion.
Its market cap is:
$200 million
But its FDV would be:
$2 billion
Suddenly, the project looks very different.
Why Does That $1.8 Billion Gap Matter?
Because 900 million tokens aren't part of the circulating supply in our simplified example.
Some could be locked for the team, early investors, ecosystem incentives or future distributions. Others might not have been issued yet.
As those tokens become circulating supply, the market has to absorb them.
If demand grows alongside supply, that doesn't automatically create a problem.
But if supply increases significantly while demand fails to keep pace, the additional tokens can create dilution and potential selling pressure. CoinGecko specifically highlights future token emissions as one reason investors compare market cap with FDV.
A Low Market Cap Can Sometimes Be Misleading
Imagine two projects.
Token A has a $500 million market cap and a $550 million FDV.
Token B also has a $500 million market cap, but its FDV is $5 billion.
At first glance, they appear similarly valued.
Look deeper and there is a major difference.
Token A already has most of its eventual supply represented in circulation. Token B has a much larger gap between its circulating and fully diluted valuations.
That doesn't automatically make Token B bad.
But it tells you that its tokenomics and future unlock schedule deserve much closer attention.
This Is Where Token Unlocks Become Important
Many crypto projects don't release their entire token supply at launch.
Tokens allocated to founders, employees, private investors, foundations or ecosystem programs can be locked and released gradually according to vesting schedules.
This is why simply looking at today's circulating market cap can sometimes give an incomplete picture.
If large unlocks are approaching, investors may want to understand who receives those tokens, how quickly supply expands and how that new supply compares with normal market liquidity.
CoinMarketCap notes that the market-cap-to-FDV relationship becomes particularly relevant when significant token emissions are scheduled for the near future.
Is a High FDV Always Bad?
No.
This is one of the biggest mistakes people can make when using FDV.
A large gap between market cap and FDV is a risk signal to investigate, not automatic proof that a token is overvalued.
Imagine a project has only 30% of its supply circulating, but the remaining tokens will be released gradually over many years.
That's very different from having huge amounts of supply scheduled to unlock within several months.
Demand matters too.
If network usage, revenue, adoption and demand for the token grow faster than circulating supply, the market may be capable of absorbing additional tokens.
That's why FDV should never be used alone.
Can FDV Predict a Token's Future Market Cap?
Not really.
Suppose a cryptocurrency has an FDV of $10 billion today.
That doesn't mean its market cap will eventually become $10 billion.
FDV generally applies today's token price to a much larger supply assumption. But today's price doesn't have to remain unchanged as supply enters circulation.
CoinGecko explicitly describes FDV as theoretical because increasing circulating supply can itself affect market price.
So FDV should be treated as a valuation lens rather than a future price prediction.
What If Market Cap and FDV Are Almost Equal?
This generally means most of the relevant token supply is already circulating.
Suppose a cryptocurrency has a $9 billion market cap and a $10 billion FDV.
The gap is relatively small.
Compare that with another project carrying a $1 billion market cap and a $10 billion FDV.
The second project has a much larger portion of supply outside its current circulating valuation.
CoinGecko offers a Market Cap/FDV metric for exactly this type of comparison. The closer the ratio is to 1, the closer current market capitalization is to fully diluted valuation.
Why This Matters for New Tokens
FDV can be particularly useful when analyzing recently launched cryptocurrencies.
Some projects launch with relatively small circulating supplies.
A limited amount of available supply can make the project's initial market cap appear relatively small even while the implied valuation of the entire token supply is enormous.
For example, imagine a new token has:
Price: $5
Circulating Supply: 50 million
Maximum Supply: 1 billion
Its market cap would be only $250 million.
But its FDV would already be $5 billion.
Someone looking only at the $250 million market cap might conclude that the project is still tiny.
The FDV tells a different story.
Market Cap vs FDV: Which One Is More Important?
Neither metric should completely replace the other.
Market cap answers:
“What is the current circulating valuation?”
FDV helps answer:
“What would the valuation look like if the full relevant supply were valued at today's price?”
Looking at both gives you much more context than looking at either number alone.
What Else Should You Examine?
Market cap and FDV are only the beginning.
Token supply schedules, upcoming unlocks, distribution among holders, trading liquidity, network activity, utility and actual adoption can all matter.
A token can have attractive tokenomics and still perform poorly if nobody wants to use or own it.
Likewise, a project with future dilution can potentially continue growing if demand expands strongly enough.
Valuation should therefore be considered alongside fundamentals rather than treated as a standalone signal.
The Bottom Line
Market cap and FDV may look like similar numbers on a crypto page, but they answer very different questions.
Market cap shows the valuation of the supply circulating today.
FDV estimates the valuation under a much larger or fully diluted supply assumption at today's price.
When the two numbers are close, future dilution may be relatively limited.
When FDV is several times larger than market cap, it's worth investigating why.
How many tokens are still outside circulating supply? When could they enter the market? Who receives them? And can demand potentially grow fast enough to absorb that additional supply?
Those questions can reveal far more than simply asking whether a token looks “cheap” because its price or market cap is low.
Before judging a crypto project's valuation, don't check only the price. Check the supply behind that price.
This article is for educational purposes only and is not financial advice.